I apologize in advance, English is not my native language and I use an online translator.
I want to share my work with Colorlight 5A-75E board and
Litex-CNC
firmware
Many thanks to the great specialist @Peter-van-Tol !!!
I used the 5A-75E board. It requires a gigabit connection, there will be no connection on a 100MB network card! I bought an additional PCI network card, and disabled the built-in one in the Bios.
The developer is currently expanding the range of supported boards.
Removed the U19, 20, 21, 22, 38, 39 chips that had an output on Pin 8-15 of the J9-16 connectors. Initially, I powered the input chips from the J33 contact. But when the connection was broken during the firmware, apparently the FPGA inputs began to work as an output and shorted out with the buffer chips. The FPGA burned out.
A 3.3V additional power supply board was made. It is connected to any J9-16 connector and supplies power to Pin 13,15 and to the buffer chips. The input optocoupler is connected to Pin 13,15.
The electronic part of the machine is powered by two 5VDC power supplies: a 5A-75E board and 24VDC (reduced to 20V) sensors and encoders.